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不规则动词巧记法英语动词按其过去式和过去分词的构成方式可分为规则动词和不规则动词。规则动词的过去式和过去分词由词尾加ed构成,而不规则动词的变化因词而异。但如对不规则动词的过去式和过去分词做一分析,就可发现其中的“规则”。为方便同学们记忆,现将初中英语教学大纲中的69个不规则动词的原形、过去式和过去分词列出并规为五种类型。同学们还可将第二、三类分为若干组,以便准确记忆。动词过去分词和过去式区别过去分词是非谓语动词的一种形式,规则动词的过去分词由动词原形加上-ed构成,不规则过去分词需要个别加以记忆,过去分词作定语时一般表示被动的意思,可以作表语或宾语补足语表示状态,还有完成的意思,可以用来构成现在完成时和过去完成时。例如:Wewere(excited)tohearit.听了这事我们很激动。Iheardthedoor(opened).我听见门给谁打开了。动词的过去式和过去分词的区别:动词的过去式作一般过去时态中的谓语:Heworkedatthefactoryoneyearago.一年前他在那家厂工作。动词的过去分词用法:1)作完成时态中的谓语成分:Ihavefinishedmyhomework.我已经把作业完成了。2)帮助构成被动语态:Thecakehasbeeneatenup.蛋糕已经被吃完了。(完成、被动)3)作非谓语,在句子中作定语、状语等成分:Heated,waterchangesintosteam.(时间状语)Givenmoreattention,theflowercouldhavegrownbetter.(条件状语)Isthereanythingplannedfortomorrow?(后置定语)动词的过去式可分为规则动词和不规则动词。规则动词的过去式变化如下:1)一般情况下,动词词尾加-ed,如:workedplayedwantedacted2)以不发音的-e结尾动词,动词词尾加-d,如:livedmoveddecideddeclinedhopedjudgedraisedwiped3)以辅音字母+y结尾的动词,把-y变为-i再加-ed,如:studiedtriedcopiedjustifiedcriedcarriedembodiedemptied4)以一个辅音字母结尾的重读闭音节动词,双写词尾辅音字母,再加-ed,如:stoppedbeggedfretteddraggeddroppedplanneddotteddripped5)注:不规则动词的过去式变化规律性不强,须多加记忆。go-went,make-made,get-got,buy-bought,come-came,fly-flew,is/am-was,are-were,see-saw,bring-brought,do-did,teach-taught,think-thought,are-were,say-said,sit-sat.read-read,spend-spent.(部分)规则动词的过去分词的构成规则与规则动词的过去式的构成规则相同。四点变化规则:(1)一般动词,在词尾直接加“ed”。work---worked---worked,visit---visited---visited(2)以“e”结尾的动词,只在词尾加“d”。live---lived---lived,(3)以“辅音字母+y”结尾的动词,将y变为i,再加“ed”。study---studied---studied,cry---cried---cried,(4)重读闭音节结尾,末尾只有一个辅音字母,先双写该辅音字母,再加“ed”。stop---stopped---stopped,drop---dropped--dropped动词过去分词和过去式区别过去分词是非谓语动词的一种形式,规则动词的过去分词由动词原形加上-ed构成,不规则过去分词需要个别加以记忆,过去分词作定语时一般表示被动的意思,可以作表语或宾语补足语表示状态,还有完成的意思,可以用来构成现在完成时和过去完成时。例如:Wewere(excited)tohearit.听了这事我们很激动。Iheardthedoor(opened).我听见门给谁打开了。一、AAA型原形、过去式和过去分词同形:costcostcostcutcutcutLetletletputputputreadreadread二、ABB型原形、过去式和过去分词同形:bringbroughtbroughtbuildbuiltbuiltbuyboughtboughtcatchcaughtcaughtfeelfeltfeltfindfoundfoundgetgotgothavehadhad二、ABB型hearheardheardholdheldheldkeepkeptkept※learnlearntlearntleaveleftleftlendlentlentmakemademademeetmetmet二、ABB型paypaidpaidsaysaidsaidsellsoldsoldsendsentsentsitsatsatsleepsleptslept※smellsmeltsmelt二、ABB型spendspentspentstandstoodstoodteachtaughttaughttelltoldtoldthinkthoughtthoughtunderstandunderstoodunderstood三、ABC型原形、过去式和过去分词各异bewas/werebeenbeginbeganbegunbreakbrokebrokendodiddonedrawdrewdrawndrinkdrankdrunkdrivedrovedriveneatateeatenfallfellfallen三、ABC型flyflewflownforgetforgotforgottengivegavegivengowentgonegrowgrewgrownknowknewknownlielaylainrideroderidden三、ABC型ringrangrungseesawseenshowshowedshownsingsangsungspeakspokespokenswimswamswum三、ABC型taketooktakenthrowthrewthrownwakewokewokenwearworewornwritewrotewritten四、ABA型原形与过去分词同形comecamecomebecomebecamebecome五、AAB型原形与过去式同形beatbeatbeatenlie/lied/lied说谎lie/lay/lain躺下,位于,平放lay/laid/laid置放。
本文标题:新目标八下_巧记不规则动词过去式和过去分词课件(11)
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